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TrustSection Class

Configures the code-access security level that is applied to an application. This class cannot be inherited.

Namespace:  System.Web.Configuration
Assembly:  System.Web (in System.Web.dll)

public sealed class TrustSection : ConfigurationSection

The TrustSection class provides a way to programmatically access and modify the configuration file <trust> section. The <trust> section configures the code-access-security permissions set that is used to run a particular application. This section can be declared at the machine, site, and application levels.

This section provides two code examples. The first demonstrates how to declaratively specify values for several properties of the TrustSection class. The second demonstrates how to use the TrustSection type.

The following configuration file example shows how to declaratively specify values for several properties of the TrustSection class.

  <trust level="Full" originUrl=""/>

The following code example demonstrates how to use the TrustSection type.

#region Using directives

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Web;
using System.Web.Configuration;


namespace Samples.Aspnet.SystemWebConfiguration
  class UsingTrustSection
    static void Main(string[] args)
        // Set the path of the config file.
        string configPath = "";

        // Get the Web application configuration object.
        Configuration config = WebConfigurationManager.OpenWebConfiguration(configPath);

        // Get the section related object.
        TrustSection configSection = (TrustSection)config.GetSection("system.web/trust");

        // Display title and info.
        Console.WriteLine("ASP.NET Configuration Info");

        // Display Config details.
        Console.WriteLine("File Path: {0}", config.FilePath);
        Console.WriteLine("Section Path: {0}", configSection.SectionInformation.Name);

        // Display Level property
        Console.WriteLine("Level: {0}", configSection.Level);

        // Set Level property
        configSection.Level = "Full";

        // Display OriginUrl property
        Console.WriteLine("Origin Url: {0}", configSection.OriginUrl);

        // Set OriginUrl property
        configSection.OriginUrl = "";

        // Update if not locked. 
        if (!configSection.SectionInformation.IsLocked)
          Console.WriteLine("** Configuration updated.");
          Console.WriteLine("** Could not update, section is locked.");
      catch (Exception e)
          // Unknown error.

      // Display and wait

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0